Display screen or portion thereof with icon



FIG. 1 is a front view of a first embodiment of a display screen orportion thereof with icon; and,

FIG. 2 is a front view of a second embodiment thereof.

The broken line showing of a display screen or portion thereof in FIG. 1and of an alternate display screen of portion thereof in FIG. 2, and thebroken line showing of the text in both views form no part of theclaimed design.

CLAIM The ornamental design for a display screen or portion thereof withicon, as shown and described.